Sharyl Attkisson of CBS News has posted a bombshell article detailing how the Obama administration has greatly increased gun sales to the Mexican military. But further investigation into Attkisson’s discovery points toward the padding of a gun-control statistic — one frequently mentioned by the Obama administration — as the motive behind the increased sales. Writes Attkisson: One weapon — an AR-15-type semi-automatic rifle — tells the story. In 2006, this same kind of rifle — tracked by serial number — is legally sold by a U.S. manufacturer to the Mexican military. Three years later — it’s found in a criminal...